release/doc/en_US.ISO8859-1/relnotes/article.xml

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   4 <!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" "release.ent">
   5  %release;
   6 <!ENTITY % sponsor PUBLIC "-//FreeBSD//ENTITIES Sponsor Specification//EN" "sponsor.ent">
   7  %sponsor;
   8 <!ENTITY % vendor PUBLIC "-//FreeBSD//ENTITIES Vendor Specification//EN" "vendor.ent">
   9  %vendor;
  10 <!ENTITY security SYSTEM "../../share/xml/security.xml">
  11 <!ENTITY errata SYSTEM "../../share/xml/errata.xml">
  12 ]>
  13 <article xmlns="http://docbook.org/ns/docbook"
  14   xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
  15
  16   <info>
  17     <title>&os; &release.current; Release Notes</title>
  18
  19     <author>
  20       <orgname>The &os; Project</orgname>
  21     </author>
  22
  23     <pubdate>$FreeBSD$</pubdate>
  24
  25     <!-- Last rev: 278934 -->
  26
  27     <copyright>
  28       <year>2015</year>
  29       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
  30         Project</holder>
  31     </copyright>
  32
  33     <legalnotice xml:id="trademarks" role="trademarks">
  34       &tm-attrib.freebsd;
  35       &tm-attrib.ibm;
  36       &tm-attrib.ieee;
  37       &tm-attrib.intel;
  38       &tm-attrib.sparc;
  39       &tm-attrib.general;
  40     </legalnotice>
  41
  42     <abstract>
  43       <para>The release notes for &os; &release.current; contain
  44         a summary of the changes made to the &os; base system on the
  45         &release.branch; development line.  This document lists
  46         applicable security advisories that were issued since the last
  47         release, as well as significant changes to the &os; kernel and
  48         userland.  Some brief remarks on upgrading are also
  49         presented.</para>
  50     </abstract>
  51   </info>
  52
  53   <sect1 xml:id="intro">
  54     <title>Introduction</title>
  55
  56     <para>This document contains the release notes for &os;
  57       &release.current;.  It describes recently added, changed, or
  58       deleted features of &os;.  It also provides some notes on
  59       upgrading from previous versions of &os;.</para>
  60
  61     <para releasetype="current">The &release.type; distribution to
  62       which these release notes apply represents the latest point
  63       along the &release.branch; development branch since
  64       &release.branch; was created.  Information regarding pre-built,
  65       binary &release.type; distributions along this branch can be
  66       found at <uri
  67         xlink:href="&release.url;">&release.url;</uri>.</para>
  68
  69     <para releasetype="snapshot">The &release.type; distribution to
  70       which these release notes apply represents a point along the
  71       &release.branch; development branch between &release.prev; and
  72       the future &release.next;.  Information regarding pre-built,
  73       binary &release.type; distributions along this branch can be
  74       found at <uri
  75         xlink:href="&release.url;">&release.url;</uri>.</para>
  76
  77     <para releasetype="release">This distribution of &os;
  78       &release.current; is a &release.type; distribution.  It can be
  79       found at <uri xlink:href="&release.url;">&release.url;</uri> or
  80       any of its mirrors.  More information on obtaining this (or
  81       other) &release.type; distributions of &os; can be found in the
  82       <link
  83         xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
  84           &os;</quote> appendix</link> to the <link
  85         xlink:href="&url.books.handbook;/">&os;
  86         Handbook</link>.</para>
  87
  88     <para>All users are encouraged to consult the release errata
  89       before installing &os;.  The errata document is updated with
  90       <quote>late-breaking</quote> information discovered late in the
  91       release cycle or after the release.  Typically, it contains
  92       information on known bugs, security advisories, and corrections
  93       to documentation.  An up-to-date copy of the errata for &os;
  94       &release.current; can be found on the &os; Web site.</para>
  95
  96     <para>This document describes the most user-visible new or changed
  97       features in &os; since &release.prev;.  In general, changes
  98       described here are unique to the &release.branch; branch unless
  99       specifically marked as &merged; features.</para>
 100
 101     <para>Typical release note items document recent security
 102       advisories issued after &release.prev;, new drivers or hardware
 103       support, new commands or options, major bug fixes, or
 104       contributed software upgrades.  They may also list changes to
 105       major ports/packages or release engineering practices.  Clearly
 106       the release notes cannot list every single change made to &os;
 107       between releases; this document focuses primarily on security
 108       advisories, user-visible changes, and major architectural
 109       improvements.</para>
 110   </sect1>
 111
 112   <sect1 xml:id="upgrade">
 113     <title>Upgrading from Previous Releases of &os;</title>
 114
 115     <para arch="amd64,i386">Binary upgrades between RELEASE versions
 116       (and snapshots of the various security branches) are supported
 117       using the &man.freebsd-update.8; utility.  The binary upgrade
 118       procedure will update unmodified userland utilities, as well as
 119       unmodified GENERIC kernels distributed as a part of an official
 120       &os; release.  The &man.freebsd-update.8; utility requires that
 121       the host being upgraded have Internet connectivity.</para>
 122
 123     <para>Source-based upgrades (those based on recompiling the &os;
 124       base system from source code) from previous versions are
 125       supported, according to the instructions in
 126       <filename>/usr/src/UPDATING</filename>.</para>
 127
 128     <important>
 129       <para>Upgrading &os; should only be attempted after backing up
 130         <emphasis>all</emphasis> data and configuration files.</para>
 131     </important>
 132   </sect1>
 133
 134   <sect1 xml:id="security-errata">
 135     <title>Security and Errata</title>
 136
 137     <para>This section lists the various Security Advisories and
 138       Errata Notices since &release.prev;.</para>
 139
 140     <sect2 xml:id="security">
 141       <title>Security Advisories</title>
 142
 143       &security;
 144     </sect2>
 145
 146     <sect2 xml:id="errata">
 147       <title>Errata Notices</title>
 148
 149       &errata;
 150     </sect2>
 151   </sect1>
 152
 153   <sect1 xml:id="userland">
 154     <title>Userland</title>
 155
 156     <para>This section covers changes and additions to userland
 157       applications, contributed software, and system utilities.</para>
 158
 159     <sect2 xml:id="userland-config">
 160       <title>Userland Configuration Changes</title>
 161
 162       <para revision="266463">The default &man.newsyslog.conf.5; now
 163         includes files in the
 164         <filename>/etc/newsyslog.conf.d/</filename> and
 165         <filename>/usr/local/etc/newsyslog.conf.d/</filename>
 166         directories by default for &man.newsyslog.8;.</para>
 167
 168       <para revision="270675">The &man.mailwrapper.8; utility has been
 169         updated to use &man.mailer.conf.5; from the
 170         <literal>LOCALBASE</literal> environment variable, which
 171         defaults to <filename class="directory">/usr/local</filename>
 172         if unset.</para>
 173
 174       <para revision="272350">The <literal>MK_ARM_EABI</literal>
 175         &man.src.conf.5; option has been removed.</para>
 176     </sect2>
 177
 178     <sect2 xml:id="userland-programs">
 179       <title>Userland Application Changes</title>
 180
 181       <para revision="258838" contrib="sponsor" sponsor="&ff;,
 182         &google;" sponsorurl="">The &man.casperd.8; daemon has been
 183         added, which provides access to functionality that is not
 184         available in the <quote>capability mode</quote>
 185         sandbox.</para>
 186
 187       <para revision="260594">When unable to load a kernel module with
 188         &man.kldload.8;, a message informing to view output of
 189         &man.dmesg.8; is now printed, opposed to the previous output
 190         <quote>Exec format error.</quote>.</para>
 191
 192       <para revision="260910">Allow &man.pciconf.8; to identify PCI
 193         devices that are attached to a driver to be identified by
 194         their device name instead of just the selector.  Additionally,
 195         an optional device argument to the <literal>-l</literal> flag
 196         to restrict the output to only listing details about a single
 197         device.</para>
 198
 199       <para revision="260913">A new flag, <quote>onifconsole</quote>
 200         has been added to <filename>/etc/ttys</filename>.  This allows
 201         the system to provide a login prompt via serial console if the
 202         device is an active kernel console, otherwise it is equivalent
 203         to <literal>off</literal>.</para>
 204
 205       <para revision="260926">Support for displaying VPD for PCI
 206         devices via &man.pciconf.8; has been added.</para>
 207
 208       <para revision="261498">&man.ping.8; protects against malicious
 209         network packets using the Capsicum framework to drop
 210         privileges.</para>
 211
 212       <para revision="265229">The &man.ps.1; utility has been
 213         updated to include the <literal>-J</literal> flag, used to
 214         filter output by matching &man.jail.8; IDs and names.
 215         Additionally, argument <literal>0</literal> can be used to
 216         <literal>-J</literal> to only list processes running on the
 217         host system.</para>
 218
 219       <para revision="265249">The &man.top.1; utility has been updated
 220         to filter by &man.jail.8; ID or name, in followup to the
 221         &man.ps.1; change in <literal>r265229</literal>.</para>
 222
 223       <para revision="265995">The Blowfish &man.crypt.3; default
 224         format has been changed to
 225         <literal>&dollar;2b&dollar;</literal>.</para>
 226
 227       <para revision="266209">The &man.pmcstat.8; utility has been
 228         updated to include a new flag, <literal>-l</literal>, which
 229         ends event collection after the specified number of
 230         seconds.</para>
 231
 232       <para revision="270745">The &man.ps.1; utility has been updated
 233         to include a new keyword, <quote>tracer</quote>, which
 234         displays the <acronym>PID</acronym> of the tracing
 235         process.</para>
 236
 237       <para revision="271482">Support for adding empty partitions has
 238         been added to the &man.mkimg.1; utility.</para>
 239
 240       <para revision="272166">The &man.primes.6; utility has been
 241         updated to correctly enumerate prime numbers between
 242         <literal>4295098369</literal> and
 243         <literal>3825123056546413050</literal>, which prior to this
 244         change, it would be possible for returned values to be
 245         incorrectly identified as prime numbers.</para>
 246
 247       <para revision="272198">The &man.mkimg.1; utility has been
 248         updated to include three options used to print information
 249         about &man.mkimg.1; itself:</para>
 250
 251       <informaltable frame="none" pgwide="0">
 252         <tgroup cols="2">
 253           <colspec colwidth="1*"/>
 254           <colspec colwidth="1*"/>
 255           <thead>
 256             <row>
 257               <entry>Option</entry>
 258               <entry>Output</entry>
 259             </row>
 260           </thead>
 261
 262           <tbody>
 263             <row>
 264               <entry><literal>--version</literal></entry>
 265               <entry>The current version of the &man.mkimg.1;
 266                 utility</entry>
 267             </row>
 268
 269             <row>
 270               <entry><literal>--formats</literal></entry>
 271               <entry>The disk image file formats supported by
 272                 &man.mkimg.1;</entry>
 273             </row>
 274
 275             <row>
 276               <entry><literal>--schemes</literal></entry>
 277               <entry>The partition schemes supported by
 278                 &man.mkimg.1;</entry>
 279             </row>
 280           </tbody>
 281         </tgroup>
 282       </informaltable>
 283
 284       <para revision="272488">Userland &man.ctf.5; support in
 285         &man.dtrace.1; has been added.  With this change,
 286         &man.dtrace.1; is able to resolve type info for function and
 287         <acronym>USDT</acronym> probe arguments, and function return
 288         values.</para>
 289
 290       <para revision="274960">The &man.elfdump.1; utility has been
 291         updated to support capability mode provided by
 292         &man.capsicum.4;.</para>
 293
 294       <para revision="275680" contrib="sponsor" sponsor="&ff;">The
 295         &man.fstyp.8; utility has been added, which is used to
 296         determine the filesystem on a specified device.</para>
 297
 298       <para revision="276881">The <literal>libedit</literal> library
 299         has been updated to support <acronym>UTF</acronym>-8, which
 300         additionally provides unicode support to &man.sh.1;.</para>
 301
 302       <para revision="277166" arch="powerpc">The &man.ptrace.2; system
 303         call has been updated include support for Altivec registers on
 304         &os;/&arch.powerpc;.</para>
 305
 306       <para revision="278320">A new device control utility,
 307         &man.devctl.8; has been added, which allows making
 308         administrative changes to individual devices, such as
 309         attaching and detaching drivers, and enabling and disabling
 310         devices.  The &man.devctl.8; utility uses the new
 311         &man.devctl.3; library.</para>
 312     </sect2>
 313
 314     <sect2 xml:id="userland-contrib">
 315       <title>Contributed Software</title>
 316
 317       <para revision="258884" contrib="sponsor"
 318         sponsor="&darpa_afrl;">&man.lldb.1; has been updated to
 319         upstream snapshot version r196259.</para>
 320
 321       <para revision="259626">Timezone data files have been updated to
 322         version 2013i.</para>
 323
 324       <para revision="260445">&man.byacc.1; has been updated to
 325         version 20140101.</para>
 326
 327       <para revision="261071">&man.jemalloc.3; has been updated to
 328         version 3.5.0.</para>
 329
 330       <para revision="261212"><application>bmake</application> has
 331         been updated to version 20140101.</para>
 332
 333       <para revision="261283"><application>libc++</application> has
 334         been updated to version 3.4.</para>
 335
 336       <para revision="261320"><application>OpenSSH</application> has
 337         been updated to 6.5p1.</para>
 338
 339       <para revision="261344"><application>mdocml</application> has
 340         been updated to version 1.12.3.</para>
 341
 342       <para revision="261991"><application>LLVM</application> and
 343         <application>Clang</application> have been updated to
 344         version 3.4.</para>
 345
 346       <para revision="266527"
 347         role="merged"><application>Sendmail</application> has been
 348         updated from 8.14.7 to 8.14.9.</para>
 349
 350       <para revision="276577"><application>file</application> has been
 351         updated to version 5.22.</para>
 352
 353       <para revision="275718">The <application>binutils</application>
 354         suite of utilities has been updated to include upstream
 355         patches that add new relocations for &arch.powerpc;
 356         support.</para>
 357
 358       <para revision="276398" contrib="sponsor" sponsor="&ff;">The
 359         <application>ELF Tool Chain</application> has been updated to
 360         upstream revision r3136.</para>
 361
 362       <para revision="276551">The <application>texinfo</application>
 363         utility and <literal>info</literal> pages were removed from
 364         the base system.  The <filename
 365           role="package">print/texinfo</filename> port should be
 366         installed on systems where <literal>info</literal> pages are
 367         needed.</para>
 368
 369       <para revision="276796" contrib="sponsor" sponsor="&ff;">The ELF
 370         object manipulation tools
 371         <application>addr2line</application>,
 372         <application>elfcopy (strip)</application>,
 373         <application>nm</application>,
 374         <application>size</application>, and
 375         <application>strings</application> were switched to the
 376         versions from the ELF Tool Chain project.</para>
 377
 378       <para revision="276881">The <literal>libedit</literal> library
 379         has been updated to include <acronym>UTF-8</acronym> support,
 380         adding <acronym>UTF-8</acronym> support to the &man.sh.1;
 381         shell.</para>
 382
 383       <para revision="277270"><application>OpenSSL</application> has
 384         been updated to version 1.0.1l.</para>
 385
 386       <para revision="278433">The &man.xz.1; utility has been udpated
 387         to version 5.2.0.</para>
 388
 389       <para revision="278433">The &man.xz.1; utility has been updated
 390         to support multi-threaded compression.</para>
 391
 392       <para revision="278970">The &man.acpi.4; subsystem has been
 393         updated to version 20150204.</para>
 394     </sect2>
 395
 396     <sect2 xml:id="userland-installer">
 397       <title>Installation and Configuration Tools</title>
 398
 399       <para revision="271539">The &man.bsdinstall.8; partition editor
 400         and &man.sade.8; utility have been updated to include native
 401         <acronym>ZFS</acronym> support.</para>
 402
 403       <para revision="272274">The &os; installation utility,
 404         &man.bsdinstall.8;, has been updated to set the
 405         <literal>canmount</literal> &man.zfs.8; property to
 406         <literal>off</literal> for the <filename
 407           class="directory">/var</filename> dataset, preventing the
 408         contents of directories within <filename
 409           class="directory">/var</filename> from conflicting when
 410         using multiple boot environments, such as that provided by
 411         <filename role="package">sysutils/beadm</filename>.</para>
 412
 413       <para revision="274394">The &man.bsdconfig.8; utility has been
 414         updated to skip the initial &man.tzsetup.8;
 415         <acronym>UTC</acronym> versus wall-clock time prompt when run
 416         in a virtual machine, determined when the
 417         <literal>kern.vm_guest</literal> &man.sysctl.8; is set to
 418         <literal>1</literal>.</para>
 419
 420       <para revision="275874">The &man.bsdinstall.8; utility has been
 421         updated to use the new &man.dpv.3; library to display progress
 422         when extracting the &os; distributions.</para>
 423     </sect2>
 424
 425     <sect2 xml:id="userland-rc">
 426       <title><filename class="directory">/etc/rc.d</filename>
 427         Scripts</title>
 428
 429       <para revision="270676">The &man.rc.8; subsystem has been
 430         updated to allow configuring services in <filename
 431           class="directory">&dollar;{LOCALBASE}/etc/rc.conf.d/</filename>.
 432         If <literal>LOCALBASE</literal> is unset, it defaults to
 433         <filename class="directory">/usr/local</filename>.</para>
 434
 435       <para revision="275299">The <filename>mrouted</filename>
 436         &man.rc.8; script has been removed from the base system.  An
 437         equivalent script is available from the <filename
 438           role="package">net/mrouted</filename> port.</para>
 439     </sect2>
 440
 441     <sect2 xml:id="userland-periodic">
 442       <title><filename class="directory">/etc/periodic</filename>
 443         Scripts</title>
 444
 445       <para revision="271321">The daily &man.periodic.8; script
 446         <filename>110.clean-tmps</filename> has been updated to avoid
 447         crossing filesystem mount boundaries when cleaning files in
 448         <filename class="directory">/tmp</filename>.</para>
 449     </sect2>
 450
 451     <sect2 xml:id="userland-libraries">
 452       <title>Runtime Libraries and API</title>
 453
 454       <para revision="268461">The &man.readline.3; library is now
 455         statically linked in software within the base system, and the
 456         shared library is no longer installed, allowing the Ports
 457         Collection to use a modern version of the library.</para>
 458
 459       <para revision="272273">The &man.strptime.3; library has been
 460         updated to add support for <acronym>POSIX</acronym>-2001
 461         features <literal>%U</literal> and
 462         <literal>%W</literal>.</para>
 463
 464       <para revision="272842,272848" contrib="sponsor"
 465         sponsor="&ff;">The &man.dl.iterate.phdr.3; library has been
 466         changed to always return the path name of the
 467         <acronym>ELF</acronym> object in the
 468         <literal>dlpi_name</literal> structure member.</para>
 469
 470       <para revision="273806" contrib="sponsor" sponsor="&chelsio;">A
 471         userland library for Chelsio Terminator 5 based iWARP cards
 472         has been added, allowing userland <acronym>RDMA</acronym>
 473         applications to work over compatible
 474         <acronym>NIC</acronym>s.</para>
 475
 476       <para revision="274987">The &man.gpio.3; library has been added,
 477         providing a wrapper around the &man.gpio.4; kernel
 478         interface.</para>
 479
 480       <para revision="277610">The <literal>futimens()</literal> and
 481         <literal>utimensat()</literal> system calls have been
 482         added.  See &man.utimensat.2; for more information.</para>
 483
 484       <para revision="278934">The &man.elf.3; compile-time dependency
 485         has been removed from <filename>dtri.o</filename>, which
 486         allows adding <application>DTrace</application> probes to
 487         userland applications and libraries without also linking
 488         against &man.elf.3;.</para>
 489     </sect2>
 490
 491     <sect2 xml:id="userland-abi">
 492       <title>ABI Compatibility</title>
 493
 494       <para revision="271982">The &linux; compatibility version has
 495         been updated to <literal>2.6.18</literal>.  The
 496         <literal>compat.linux.osrelease</literal> &man.sysctl.8; is
 497         evaluated when building the <filename
 498           role="package">emulators/linux-c6</filename> and related
 499         ports.</para>
 500     </sect2>
 501   </sect1>
 502
 503   <sect1 xml:id="kernel">
 504     <title>Kernel</title>
 505
 506     <para>This section covers changes to kernel configurations, system
 507       tuning, and system control parameters that are not otherwise
 508       categorized.</para>
 509
 510     <sect2 xml:id="kernel-bugfix">
 511       <title>Kernel Bug Fixes</title>
 512
 513       <para revision="265876">A kernel bug that inhibited proper
 514         functionality of the <literal>dev.cpu.0.freq</literal>
 515         &man.sysctl.8; on &intel; processors with Turbo
 516         Boost&nbsp;&trade; enabled has been fixed.</para>
 517
 518       <para revision="271697" arch="powerpc">Support for
 519         &man.dtrace.1; stack tracing has been fixed for
 520         &os;/&arch.powerpc;, using the <literal>trapexit()</literal>
 521         and <literal>asttrapexit()</literal> functions instead of
 522         checking within addressed kernel space.</para>
 523
 524       <para revision="272089">A bug in &man.ipfw.4; that could
 525         potentially lead to a kernel panic when using &man.dummynet.4;
 526         at layer 2 has been fixed.</para>
 527     </sect2>
 528
 529     <sect2 xml:id="kernel-config">
 530       <title>Kernel Configuration</title>
 531
 532       <para revision="266531">The <literal>IMAGACT_BINMISC</literal>
 533         kernel configuration option has been enabled by default,
 534         which enables application execution through emulators, such
 535         as <application>Qemu</application>.</para>
 536
 537       <para revision="268045">The <literal>VT</literal> kernel
 538         configuration file has been removed, and the &man.vt.4;
 539         driver is included in the <literal>GENERIC</literal> kernel.
 540         To enable &man.vt.4;, enter <literal>set kern.vty=vt</literal>
 541         at the &man.loader.8; prompt during boot, or add
 542         <literal>kern.vty=vt</literal> to &man.loader.conf.5; and
 543         reboot the system.</para>
 544
 545       <para revision="277904">The &man.config.8; utility has been
 546         updated to allow using a non-standard <filename
 547           class="directory">src/</filename> tree, specified as an
 548         argument to the <literal>-s</literal> flag.</para>
 549
 550       <para revision="277990" arch="powerpc64">The
 551         &os;/&arch.powerpc64; kernel now builds as
 552         a position-independent executable, allowing the kernel to be
 553         loaded into and run from any physical or virtual
 554         address.</para>
 555
 556       <important>
 557         <para>This change requires an update to &man.loader.8;.
 558           The userland and kernel must be updated before rebooting the
 559           system.</para>
 560       </important>
 561     </sect2>
 562
 563     <sect2 xml:id="kernel-sysctl">
 564       <title>System Tuning and Controls</title>
 565
 566       <para revision="275140" contrib="sponsor" sponsor="&ff;">The
 567         &man.hwpmc.4; default and maximum callchain depths have been
 568         increased.  The default has been increased from 16 to 32, and
 569         the maximum increased from 32 to 128.</para>
 570     </sect2>
 571   </sect1>
 572
 573   <sect1 xml:id="drivers">
 574     <title>Devices and Drivers</title>
 575
 576     <para>This section covers changes and additions to devices and
 577       device drivers since &release.prev;.</para>
 578
 579     <sect2 xml:id="drivers-device">
 580       <title>Device Drivers</title>
 581
 582       <para revision="260903">Support for GPS ports has been added to
 583         &man.uhso.4;.</para>
 584
 585       <para revision="265132">The &man.full.4; device has been added,
 586         and the <literal>lindev(4)</literal> device has been removed.
 587         Prior to this change, <literal>lindev(4)</literal> provided
 588         only the <filename>/dev/full</filename> character device,
 589         returning <literal>ENOSPC</literal> on write attempts.  As
 590         this device is not specific to &linux;, a native &os; version
 591         has been added.</para>
 592
 593       <para revision="271705">Hardware context support has been
 594         added to the <literal>drm/i915</literal> driver, adding
 595         support for <application>Mesa</application> 9.2 and
 596         later.</para>
 597
 598       <para revision="273178">The &man.vt.4; driver has been updated,
 599         replacing the bitmapped <literal>kern.vt.spclkeys</literal>
 600         &man.sysctl.8; with individual
 601         <literal>kern.vt.kbd_*</literal> variants.</para>
 602
 603       <para revision="273598">The &man.hpet.4; driver has been updated
 604         to create a
 605         <filename>/dev/hpet<replaceable>N</replaceable></filename>
 606         device, providing access to <acronym>HPET</acronym> from
 607         userspace.</para>
 608     </sect2>
 609
 610     <sect2 xml:id="drivers-storage">
 611       <title>Storage Drivers</title>
 612
 613       <para revision="265236" contrib="sponsor"
 614         sponsor="&lsi;, &spectralogic;" sponsorurl="">The &man.mpr.4;
 615         device has been added, providing support for LSI Fusion-MPT
 616         3 12Gb SCSI/SATA controllers.</para>
 617
 618       <para revision="265555" contrib="sponsor"
 619           sponsor="&lsi;">The &man.mrsas.4; driver has been added,
 620         providing support for LSI MegaRAID SAS controllers.  The
 621         &man.mfi.4; driver will attach to the controller, by default.
 622         To enable &man.mrsas.4; add
 623         <literal>hw.mfi.mrsas_enable=1</literal> to
 624         <filename>/boot/loader.conf</filename>, which turns off
 625         &man.mfi.4; device probing.</para>
 626
 627       <note>
 628         <para>At this time, the &man.mfiutil.8; utility and the &os;
 629           version of <application>MegaCLI</application> and
 630           <application>StorCli</application> do not work with
 631           &man.mrsas.4;.</para>
 632       </note>
 633
 634       <para revision="275461" contrib="sponsor" sponsor="&ix;">The
 635         &man.ctl.4; subsystem has been updated, increasing the ports
 636         limit from <literal>128</literal> to <literal>256</literal>,
 637         and <acronym>LUN</acronym> limit from <literal>256</literal>
 638         to <literal>1024</literal>.</para>
 639
 640       <para revision="276526">The <literal>asr(4)</literal> driver has
 641         been removed, and is no longer supported.</para>
 642     </sect2>
 643
 644     <sect2 xml:id="drivers-network">
 645       <title>Network Drivers</title>
 646
 647       <para revision="258830">Support for Broadcom chipsets BCM57764,
 648         BCM57767, BCM57782, BCM57786 and BCM57787 has been added to
 649         &man.bge.4;.</para>
 650
 651       <para revision="260448">Support for the &intel; Centrino&trade;
 652         Wireless-N 135 chipset has been added.</para>
 653
 654       <para revision="260552">Firmware for &intel; Centrino&trade;
 655         Wireless-N 105 devices has been added to the base
 656         system.</para>
 657
 658       <para revision="261975">The deprecated nve(4) driver has been
 659         removed.  Users of NVIDIA nForce MCP network adapters are
 660         advised to use the &man.nfe.4; driver instead, which has been
 661         the default driver for this hardware since
 662         &os;&nbsp;7.0.</para>
 663
 664       <para revision="264601" contrib="sponsor"
 665         sponsor="&darpa_afrl;">The <literal>if_nf10bmac(4)</literal>
 666         device has been added, providing support for NetFPGA-10G
 667         Embedded CPU Ethernet Core.</para>
 668
 669       <note>
 670         <para>The <literal>if_nf10bmac(4)</literal> driver operates on
 671           the FPGA, and is not suited for the PCI host
 672           interface.</para>
 673       </note>
 674
 675       <para revision="265348" contrib="sponsor"
 676         sponsor="&netgate;">The &man.ath.hal.4; driver has been
 677         updated to support the Atheros AR1111 chipset.</para>
 678
 679       <para revision="266770">Support for the &intel; Centrino&trade;
 680         Wireless-N 105 chipset has been added.</para>
 681
 682       <para revision="266757" contrib="sponsor"
 683         sponsor="&chelsio;">Support for the &man.cxgbe.4; Terminator
 684         5 (T5) 10G/40G cards has been added to &man.netmap.4;.</para>
 685
 686       <para revision="272730">The &man.alc.4; driver has been updated
 687         to support AR816x and AR817x ethernet controllers.</para>
 688
 689       <para revision="273331">The &man.vxlan.4; driver has been added,
 690         which creates a virtual Layer 2 (Ethernet) network overlaid in
 691         a Layer 3 (IP/UDP) network.  The &man.vxlan.4; driver is
 692         analogous to &man.vlan.4;, but is designed to be better suited
 693         for large, multiple-tenant datacenter environments.</para>
 694
 695       <para revision="274246" contrib="sponsor" sponsor="&yandex;">The
 696         &man.gre.4; driver has been significantly overhauled, and has
 697         been split into two separate modules, &man.gre.4; and
 698         &man.me.4;.</para>
 699     </sect2>
 700   </sect1>
 701
 702   <sect1 xml:id="hardware">
 703     <title>Hardware Support</title>
 704
 705     <para>This section covers general hardware support for physical
 706       machines, hypervisors, and virtualization environments, as well
 707       as hardware changes and updates that do not otherwise fit in
 708       other sections of this document.</para>
 709
 710     <sect2 xml:id="hardware-support">
 711       <title>Hardware Support</title>
 712
 713       <para revision="268303">The &man.asmc.4; driver has been
 714         updated to support the &apple;&nbsp;MacMini 3,1.</para>
 715
 716       <para revision="268351">Support for &os;/ia64 has been dropped
 717         as of &os;&nbsp;11.</para>
 718
 719       <para revision="274386">An issue that could cause a system to
 720         hang when entering <acronym>ACPI</acronym>
 721         <literal>S3</literal> state (suspend to
 722         <acronym>RAM</acronym>) has been corrected in the &man.acpi.4;
 723         and &man.pci.4; drivers.</para>
 724
 725       <para revision="274733" arch="powerpc">The power management unit
 726         subsystem has been updated to support power button events on
 727         certain &arch.powerpc; hardware, such as aluminum
 728         PowerBook&nbsp;&reg;.</para>
 729
 730       <para revision="275171,275190" arch="powerpc">The &man.hwpmc.4;
 731         driver has been updated to correct performance counter
 732         sampling on G4 (MPC74xxx) and G5 class processors.</para>
 733
 734       <para revision="275732" contrib="sponsor"
 735         sponsor="&ff;,&netgate;">The
 736         <application>OpenCrypto</application> framework has been
 737         updated to include <literal>AES-ICM</literal> and
 738         <literal>AES-GCM</literal> modes, both of which have also been
 739         added to the &man.aesni.4; driver.</para>
 740     </sect2>
 741
 742     <sect2 xml:id="hardware-virtualization">
 743       <title>Virtualization Support</title>
 744
 745       <para revision="260410">Support for the <quote>Virtual Interrupt
 746           Delivery</quote> feature of &intel;&nbsp;VT-x is enabled if
 747         supported by the CPU.  This feature can be disabled by running
 748         <literal>sysctl hw.vmm.vmx.use_apic_vid=0</literal>.
 749         Additionally, to persist this setting across reboots, add
 750         <literal>hw.vmm.vmx.use_apic_vid=0</literal> to
 751         <filename>/etc/sysctl.conf</filename>.</para>
 752
 753       <para revision="260532">Support for <quote>Posted Interrupt
 754           Processing</quote> is enabled if supported by the CPU.  This
 755         feature can be disabled by running <literal>sysctl
 756           hw.vmm.vmx.use_apic_pir=0</literal>.  Additionally, to
 757         persist this setting across reboots, add
 758         <literal>hw.vmm.vmx.use_apic_pir=0</literal> to
 759         <filename>/etc/sysctl.conf</filename>.</para>
 760
 761       <para revision="260582">Unmapped IO support has been added to
 762         &man.virtio_blk.4;.</para>
 763
 764       <para revision="260583">Unmapped IO support has been added to
 765         &man.virtio_scsi.4;.</para>
 766
 767       <para revision="260847">The &man.virtio_random.4; driver has
 768         been added to harvest entropy from the host system.</para>
 769
 770       <para revision="261504">&os;/&arch.i386; guests can be run under
 771         bhyve.</para>
 772
 773       <para revision="267536" contrib="sponsor"
 774         sponsor="&citrix.rd;">Support for running a &os;/&arch.amd64;
 775         <application>Xen</application> guest instance as
 776         <acronym>PVH</acronym> guest has been added.
 777         <acronym>PVH</acronym> mode, short for <quote>Para-Virtualized
 778           Hardware</quote>, uses para-virtualized drivers for boot and
 779         I/O, and uses hardware virtualization extensions for all other
 780         tasks, without the need for emulation.</para>
 781
 782       <para revision="273515">The &man.virtio.console.4; driver has
 783         been added, which provides an interface to VirtIO console
 784         devices through a &man.tty.4; device.</para>
 785     </sect2>
 786
 787     <sect2 xml:id="hardware-arm">
 788       <title>ARM Support</title>
 789
 790       <para revision="260921">The &man.nand.4; device is enabled for
 791         ARM devices by default.</para>
 792
 793       <para revision="273264" arch="armv6">An issue that could cause
 794         instability when detecting <acronym>SD</acronym> cards on the
 795         Raspberry Pi <acronym>SOC</acronym> has been fixed.</para>
 796
 797       <para revision="275963">The <literal>bcm2835_cpufreq</literal>
 798         driver has been added, which supports <acronym>CPU</acronym>
 799         frequency and voltage control on the Raspberry Pi
 800         <acronym>SOC</acronym>.</para>
 801     </sect2>
 802   </sect1>
 803
 804   <sect1 xml:id="storage">
 805     <title>Storage</title>
 806
 807     <para>This section covers changes and additions to file systems
 808       and other storage subsystems, both local and networked.</para>
 809
 810     <sect2 xml:id="storage-general">
 811       <title>General Storage</title>
 812       <para revision="278037" contrib="sponsor" sponsor="&ix;">The
 813         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 814         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 815         with a new mechanism that works for any port.</para>
 816
 817       <para revision="278354" contrib="sponsor" sponsor="&ix;">The
 818         &man.ctld.8; utility has been updated to allow controlling
 819         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 820     </sect2>
 821
 822     <sect2 xml:id="storage-net">
 823       <title>Networked Storage</title>
 824
 825       <para revision="270096" contrib="sponsor" sponsor="&ff;">The new
 826         filesystem automount facility, &man.autofs.5;, has been added.
 827         The new &man.autofs.5; facility is similar to that found in
 828         other &unix;-like operating systems, such as OS&nbsp;X&trade;
 829         and Solaris&trade;.  The &man.autofs.5; facility uses
 830         a &sun;-compatible &man.auto.master.5; configuration file, and
 831         is administered with the &man.automount.8; userland utility,
 832         and the &man.automountd.8; and &man.autounmountd.8;
 833         daemons.</para>
 834     </sect2>
 835
 836     <sect2 xml:id="storage-zfs">
 837       <title>ZFS</title>
 838
 839       <para revision="275748">The <literal>arc_meta_limit</literal>
 840         statistics are now visible through the
 841         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 842         change, the <literal>vfs.zfs.arc_meta_used</literal>
 843         &man.sysctl.8; has been removed, and replaced with the
 844         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 845         &man.sysctl.8;.</para>
 846     </sect2>
 847
 848     <sect2 xml:id="storage-geom">
 849       <title>&man.geom.4;</title>
 850
 851       <para revision="267359">Support for the
 852         <literal>disklabel64</literal> partitioning scheme has been
 853         added to &man.gpart.8;.</para>
 854     </sect2>
 855   </sect1>
 856
 857   <sect1 xml:id="boot">
 858     <title>Boot Loader Changes</title>
 859
 860     <para>This section covers the boot loader, boot menu, and other
 861       boot-related changes.</para>
 862
 863     <sect2 xml:id="boot-loader">
 864       <title>Boot Loader Changes</title>
 865
 866       <para revision="274085">The &man.vt.4; driver has been made the
 867         default system console driver.  The &man.syscons.4; driver is
 868         still available, and can be enabled by adding
 869         <literal>kern.vty=sc</literal> in &man.loader.conf.5;.
 870         Alternatively, &man.syscons.4; can be enabled at boot time by
 871         entering <literal>set kern.vty=sc</literal> at the
 872         &man.loader.8; prompt.</para>
 873     </sect2>
 874
 875     <sect2 xml:id="boot-menu">
 876       <title>Boot Menu Changes</title>
 877
 878       <para>&nbsp;</para>
 879     </sect2>
 880   </sect1>
 881
 882   <sect1 xml:id="network">
 883     <title>Networking</title>
 884
 885     <para>This section describes changes that affect networking in
 886       &os;.</para>
 887
 888     <sect2 xml:id="network-protocols">
 889       <title>Network Procols</title>
 890
 891       <para revision="263140">Support for the IPX network transport
 892         protocol has been removed, and will not be supported in
 893         &os;&nbsp;11 and later releases.</para>
 894
 895       <para revision="272720" contrib="sponsor"
 896         sponsor="&limelight;">Support for <acronym>PLPMTUD</acronym>
 897         blackhole detection (<acronym>RFC</acronym> 4821) has been
 898         added to the &man.tcp.4; stack, disabled by default.  New
 899         control tunables have been added:</para>
 900
 901       <informaltable frame="none" pgwide="0">
 902         <tgroup cols="2">
 903           <colspec colwidth="1*"/>
 904           <colspec colwidth="1*"/>
 905           <thead>
 906             <row>
 907               <entry>Tunable</entry>
 908               <entry>Description</entry>
 909             </row>
 910           </thead>
 911
 912           <tbody>
 913             <row>
 914               <entry><literal>net.inet.tcp.pmtud_blackhole_detection</literal></entry>
 915               <entry>Enables or disables <acronym>PLPMTUD</acronym>
 916                 blackhole detection</entry>
 917             </row>
 918
 919             <row>
 920               <entry><literal>net.inet.tcp.pmtud_blackhole_mss</literal></entry>
 921               <entry><acronym>MSS</acronym> to try for IPv4</entry>
 922             </row>
 923
 924             <row>
 925               <entry><literal>net.inet.tcp.v6pmtud_blackhole_mss</literal></entry>
 926               <entry><acronym>MSS to try for IPv6</acronym></entry>
 927             </row>
 928           </tbody>
 929         </tgroup>
 930       </informaltable>
 931
 932       <para>New monitoring &man.sysctl.8;s haven been added:</para>
 933
 934       <informaltable frame="none" pgwide="0">
 935         <tgroup cols="2">
 936           <colspec colwidth="1*"/>
 937           <colspec colwidth="1*"/>
 938           <thead>
 939             <row>
 940               <entry>Tunable</entry>
 941               <entry>Description</entry>
 942             </row>
 943           </thead>
 944
 945           <tbody>
 946             <row>
 947               <entry><literal>net.inet.tcp.pmtud_blackhole_activated</literal></entry>
 948               <entry>Number of times the code was activated to attempt
 949                 downshifting the <acronym>MSS</acronym></entry>
 950             </row>
 951
 952             <row>
 953               <entry><literal>net.inet.tcp.pmtud_blackhole_min_activated</literal></entry>
 954               <entry>Number of times the blackhole
 955                 <acronym>MSS</acronym> was used in an attempt to
 956                 downshift</entry>
 957             </row>
 958
 959             <row>
 960               <entry><literal>net.inet.tcp.pmtud_blackhole_failed</literal></entry>
 961               <entry>Number of times that the blackhole failed to
 962                 connect after downshifting the
 963                 <acronym>MSS</acronym></entry>
 964             </row>
 965           </tbody>
 966         </tgroup>
 967       </informaltable>
 968     </sect2>
 969   </sect1>
 970
 971   <sect1 xml:id="ports">
 972     <title>Ports Collection and Package Infrastructure</title>
 973
 974     <para>This section covers changes to the &os;&nbsp;Ports
 975       Collection, package infrastructure, and package maintenance and
 976       installation tools.</para>
 977
 978     <sect2 xml:id="ports-infrastructure">
 979       <title>Infrastructure Changes</title>
 980
 981       <para>&nbsp;</para>
 982     </sect2>
 983
 984     <sect2 xml:id="ports-packages ">
 985       <title>Packaging Changes</title>
 986
 987       <para>&nbsp;</para>
 988     </sect2>
 989   </sect1>
 990
 991   <sect1 xml:id="doc">
 992     <title>Documentation</title>
 993
 994     <para>This section covers changes to the &os;&nbsp;Documentation
 995       Project sources and toolchain.</para>
 996
 997     <sect2 xml:id="doc-sources">
 998       <title>Documentation Source Changes</title>
 999
1000       <para>&nbsp;</para>
1001     </sect2>
1002
1003     <sect2 xml:id="doc-toolchain">
1004       <title>Documentation Toolchain Changes</title>
1005
1006       <para>&nbsp;</para>
1007     </sect2>
1008   </sect1>
1009
1010   <sect1 xml:id="releng">
1011     <title>Release Engineering and Integration</title>
1012
1013     <para>This section convers changes that are specific to the
1014       &os;&nbsp;Release Engineering processes.</para>
1015
1016     <sect2 xml:id="releng-changes">
1017       <title>Integration Changes</title>
1018
1019       <para revision="277458" contrib="sponsor" sponsor="&ff;">The
1020         Release Engineering build tools have been updated to include
1021         support for producing virtual machine disk images for various
1022         cloud hosting providers.</para>
1023
1024       <para revision="278926">The Release Engineering build tools have
1025         been updated to use multi-threaded &man.xz.1;.  By default,
1026         the number of &man.xz.1; threads is set to the number of cores
1027         available.</para>
1028     </sect2>
1029   </sect1>
1030 </article>